Changed to E63




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The 6.3s have issues and every time I beat on my car I would turn the radio and listen for ticking.. Not a good way to enjoy the car but like I said never had issues.
I think the best thing is to buy a 2010+ model with stock revised headbolts and then just change out the lifters for the SLS units when you buy the car, assuming the cams are in good shape.
Another common problem is the arm on the actuator for the intake runner, that fails.



